Retinoblastoma CT

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]; Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[3] Simrat Sarai, M.D. [4]

Overview

CT scan has been the standard imaging study of retinoblastoma. Retinoblastoma usually appears as an intra-ocular mass with calcification (in 80% of the cases).

CT scan

Retinoblastoma is diagnosed via indirect ophthalmoscopy. Imaging studies are usually done for these goals:^[1]

To confirm the diagnosis in the difficult cases.
To assess the involvement of extra-ocular extension or associated cerebral lesion in trilateral cases.

CT scan has been the standard imaging study in the evaluation of retinoblastoma due to its sensitivity in the detection of typical calcification of the tumor appearing in 80% of large tumors.

However, CT scan has less sensitivity compared to MRI in the diagnosis of tumor infiltration to the nearby structures.^[1]^[2]

References

↑ ^1.0 ^1.1 Meel R, Radhakrishnan V, Bakhshi S (April 2012). “Current therapy and recent advances in the management of retinoblastoma”. Indian J Med Paediatr Oncol. 33 (2): 80–8. doi:10.4103/0971-5851.99731. PMC 3439795. PMID 22988349.
↑ Schueler AO, Hosten N, Bechrakis NE, Lemke AJ, Foerster P, Felix R, Foerster MH, Bornfeld N (March 2003). “High resolution magnetic resonance imaging of retinoblastoma”. Br J Ophthalmol. 87 (3): 330–5. doi:10.1136/bjo.87.3.330. PMC 1771559. PMID 12598449.
↑ ^3.0 ^3.1 Image courtesy of Dr. Dalia Ibrahim. Radiopaedia (original file [1]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC

Overview